One vertex per element, one color per generator, with an edge from x to x·s.
(4,11)(7,9)(12,16)(14,15)(17,18,23,26)(19,24,21,20)(22,30,31,25)(27,28,29,32)(33,34,39,37)(35,42,41,38)(36,44,46,40)(43,45,47,48)(1,2,6,3)(4,7,11,9)(5,10,13,8)(12,15,16,14)(17,18,23,26)(19,24,21,20)(22,30,31,25)(27,28,29,32)(34,37)(35,41)(40,44)(43,47)(2,3)(7,9)(8,10)(14,15)(17,19,23,21)(18,20,26,24)(22,27,31,29)(25,28,30,32)(33,35)(34,38)(36,43)(37,42)(39,41)(40,45)(44,48)(46,47)(1,3,6,2)(4,7,11,9)(5,10,13,8)(12,14,16,15)(17,20)(18,19)(21,26)(22,28)(23,24)(25,27)(29,30)(31,32)(33,36)(34,40)(35,43)(37,44)(38,45)(39,46)(41,47)(42,48)(1,4)(2,7)(3,9)(5,12)(6,11)(8,14)(10,15)(13,16)(17,21,23,19)(18,24,26,20)(22,29,31,27)(25,32,30,28)(33,37,39,34)(35,42,41,38)(36,44,46,40)(43,48,47,45)(1,5)(2,8)(3,10)(4,12)(6,13)(7,14)(9,15)(11,16)(17,22,23,31)(18,25,26,30)(19,27,21,29)(20,28,24,32)(33,38,39,42)(34,41,37,35)(36,45,46,48)(40,47,44,43)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.